Logitech MX Master Frequently Asked Questions Manual page 13

5. Verify the product or receiver is connected directly to the computer and not to a hub, extender,
switch or something similar.
6. Unpair/repair or disconnect/reconnect hardware.
7. Upgrade firmware if available.
8. Windows only — try a different USB port. If it makes a difference, try
USB chipset driver.
9. Try on a different computer. Windows only — if it works on a different computer, then the issue
might be related to a USB chipset driver.
 +Unable to pair to Unifying receiver
If you're unable to pair your device to the Unifying receiver, please do the following:
STEP A:
1. Make sure the device is found in Devices and Printers. If the device is not there, follow steps 2
and 3.
2. If connected to a USB HUB, USB Extender or to the PC case, try connecting to a port directly on
the computer motherboard.
3. Try a different USB port; if a USB 3.0 port was used previously, try a USB 2.0 port instead.
STEP B:

Open Unifying Software and see if your device is listed there. If not, follow the steps to
the device to a Unifying
 +Update your motherboard's USB and chipset drivers
Before you update, make sure you know the name of the manufacturer and model number.
Here's how you can find those details on Windows 7, Windows 8, and Windows 10:
1. Press and hold the Windows key, then press R. In the Run box, type msinfo32 , and then click
OK or press Enter.
2. In the System Summary tab, in the right pane:
o Your motherboard's manufacturer is listed next to System Manufacturer
o Your motherboard's model number is listed next to System Model
3. If the manufacturer model is not listed under System Information, then refer to your
motherboard manual or look for the physical motherboard model number, which should be
located near the chipset.
After you locate the manufacturer and model number, follow these steps to download and update your
USB and chipset drivers:
receiver.
updating the motherboard
connect